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Current submillimetre surveys are hindered in their ability to reveal detailed information on the epoch of galaxy formation and the evolutionary history of a high-redshift starburst galaxy population. The difficulties are due to the small…

天体物理学 · 物理学 2007-05-23 David H. Hughes , Enrique Gaztanaga

Large-format (sub)millimeter wavelength imaging arrays are best operated in scanning observing modes rather than traditional position-switched (chopped) modes. The choice of observing mode is critical for isolating source signals from…

天体物理学 · 物理学 2014-11-18 A. Kovacs

The magnification effects of clustered matter produce variations in the image sizes and number density of galaxies across the sky. This paper advocates the use of these effects in wide field surveys to map large-scale structure and the…

天体物理学 · 物理学 2009-11-07 Bhuvnesh Jain

We explore the cosmological constraints expected from wide area XMM-type cluster surveys covering 50-200 deg2, under realistic observing conditions. We perform a Fisher matrix analysis based on cluster number counts in combination with…

宇宙学与河外天体物理 · 物理学 2011-07-26 M. Pierre , F. Pacaud , J. B. Juin , J. B. Melin , N. Clerc , P. S. Corasaniti

Recent extensive, multi-color deep surveys of galaxies open a possibility to get observational estimation of sizes for the largest structures in the Universe. Photometric redshift accuracy (about 0.03(1+z)) allows directly study clustering…

天体物理学 · 物理学 2008-09-16 N. V. Nabokov , Yu. V. Baryshev

We introduce a new set of zoom-in cosmological simulations with sub-pc resolution, intended to model extremely faint, highly magnified star-forming stellar clumps, detected at z=6.14 thanks to gravitational lensing. The simulations include…

星系天体物理 · 物理学 2022-09-14 F. Calura , A. Lupi , J. Rosdahl , E. Vanzella , M. Meneghetti , P. Rosati , E. Vesperini , E. Lacchin , R. Pascale , R. Gilli

One of the major goals of observational cosmology is to acquire empirical data that has the diagnostic power to develop the theoretical modelling of the high-redshift universe, ultimately leading to an accurate understanding of the…

天体物理学 · 物理学 2007-05-23 David H. Hughes

The use of continuum emission radio galaxies as cosmological tracers of the large-scale structure will soon move into a new phase. Upcoming surveys from the Australian Square Kilometre Array Pathfinder (ASKAP), MeerKAT, and the Square…

宇宙学与河外天体物理 · 物理学 2021-07-28 Jacobo Asorey , David Parkinson

This paper describes a programme to map large-scale cosmic structures on the largest possible scales by using the Five hundred metre Aperture Spherical Telescope (FAST) to make a 21 cm (red-shifted) intensity map of the sky for the range…

宇宙学与河外天体物理 · 物理学 2017-01-25 George F. Smoot , Ivan Debono

Highly accurate models of the galaxy population over cosmological volumes are necessary in order to predict the performance of upcoming cosmological missions. We present a data-driven model of the galaxy population constrained by deep 0.1-8…

天体物理仪器与方法 · 物理学 2016-06-22 Nathaniel R. Stickley , Peter Capak , Daniel Masters , Roland de Putter , Olivier Doré , Jamie Bock

Using the submm array camera SCUBA on the 15-m JCMT it is now possible to conduct unbiased submm surveys and quantify the level of star-formation activity in the young Universe by observing the rest-frame FIR thermal emission from dust in…

天体物理学 · 物理学 2007-05-23 David H. Hughes

We explore a variety of statistics of clusters selected with cosmic shear measurement by utilizing both analytic models and large numerical simulations. We first develop a halo model to predict the abundance and the clustering of weak…

宇宙学与河外天体物理 · 物理学 2015-09-16 Masato Shirasaki , Takashi Hamana , Naoki Yoshida

Ground and space-based sky surveys enable powerful cosmological probes based on measurements of galaxy properties and the distribution of galaxies in the Universe. These probes include weak lensing, baryon acoustic oscillations, abundance…

A number of experiments for measuring anisotropies of the Cosmic Microwave Background use scanning strategies in which temperature fluctuations are measured along circular scans on the sky. It is possible, from a large number of such…

天体物理学 · 物理学 2009-10-30 J. Delabrouille , K. M. Górski , E. Hivon

The high Galactic latitude sky at millimeter and submm wavelengths contains significant cosmological information about the early Universe (in terms of the cosmic microwave background) but also the process of structure formation in the…

宇宙学与河外天体物理 · 物理学 2010-09-16 Luca Conversi , Paola Fiadino , Paolo de Bernardis , Silvia Masi

We illustrate the extraordinary discovery potential for extragalactic astrophysics of a far-IR/submm all-sky spectroscopic survey with a 3m-class space telescope. Spectroscopy provides both a 3D view of the Universe and allows us to take…

The Pan-STARRS1 survey is currently obtaining imaging in 5 bands (grizy) for the $3\pi$ steradian survey, one of the largest optical surveys ever conducted. The finished survey will have spatially varying depth, due to the survey strategy.…

I present various simulations of an on-going large sub-mm survey, SHADES, showing how constraints can be put on galaxy formation models and cosmology from this survey.

天体物理学 · 物理学 2017-03-29 Eelco van Kampen

Hughes & Gaztanaga (2001, see article in these proceedings) have presented realistic simulations to address key issues confronting existing and forthcoming submm surveys. An important aspect illustrated by the simulations is the effect…

天体物理学 · 物理学 2017-08-23 Enrique Gaztanaga , David H. Hughes

An international project is underway to design and build a radio telescope with an effective collecting area two orders of magnitude greater than the largest existing instruments. One of the many scientific goals of this instrument will be…

天体物理学 · 物理学 2009-09-25 A. Hopkins , R. Windhorst , L. Cram , R. Ekers
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